Francis alpha cotiiias



' To all whom it ncty concern.-

NITED ome rumors ALPHA COTIIIAS,'OF Iver-roar, FRANCE. i

LLoYe SPECIFICATION forming part of Letters Patent no. 586,163, dated July 13, 1897.-

latent; inea'i 'rn 2,1897. Serial no. 630,441. (No spcimeusJj'Pateiifledinlrauceil'une 2,18%,130. 2567852 n Belgium June 30,1896,N0.122,223; in England June 80, I896} No2-14;479;

'July 31,1896 .N0.4.2,221; in Luxemhurg July 31, l89ti,flo.' 2,582, andin Spainil'uly 31, 1896,11'0- 19,417.

Be it known that I, FRAN 01s A LPHA Co'rHIAs,

a citizen of the Republic of France, residing at 9 Rue Victor Hugo, Ivry-Iprt, Seine,

in the Republic of France, haveinvented certain new and useful Improvements in Al- .loys, of which the following is a full, clear,

and exact Specification.

The invention has been patented in France,

No. 256,852, dated June 2, 1896 in Belgium, No. 122,223, dated June 30, 1896 in Austria, No. 4=6/3,-I42, dated July 31, 1896 in Italy, No. 42,221,- datcd July 31, 1896; in Luxemburg, No. 2,582, dated July--31, 1896 in England, No. 14,479.dated June 30, 1806, and in Spain, No. 19,417, dated July 31, 1896.

The invention forming the subject of this application relates to a new ineiitlllcalloy and process of makmg the same. This alloy has considerable tensile strength. Its resisting force is as high as thirty-five kilograms per square millimeter of section. Itcan be soldered and worked with the greatest ease; It consists of a mixture, in given proportions,

of copper, tin, zinc, and lead,-to which I add chlorid of ammonia and phosphor-us in the state of salt.

The composition of this alloy, is as follows: copper, one hundred and'lsixt grams; tin, fifty gra1ns;.zinc, seven hundred and fifty grams; lead, forty grams; total, one thousand grams.

p This alloy is especially int-ended for the manufacturing of ordinary pieces of machinery, It. is an advantageous substitute for brass and cast-iron. It enables me to obtain pieces of this kind completelyfinished on leaving the mold.

To manufacture this alloy, I proceed as follows I, begin by putting into a crucible the requisite quantities of copper and tin and I let them melt together. In this way I obtain a first alloy of copper and tin, to which, after cooling, I add the necessary quantity of .zinc and lead, and then I let the whole mass melt together once more. The substances are thereby thoroughly combined and I obtain a perfectly-homogeneous alloy.- In order to facilitate the combination of the various elements and reduce the oxids that the state of salt. These salts are phosphidcs of titanium, manganese, Wolfram, tungsten, &c., which further increase the hardness of the alloy.,

\Vhen the alloy is completely melted it is cast into ingot-molds, v herein it is left to coo].. g g

I To make perfectly sure that the composition ofthe alloy is rigorously correct, a samthe requisite proportions do not exist the al- 10 is melted over-again and such material added as is necessary to give to the mass the requisite composition. V

The various metals used to increase the resisti ig force and hardness of alloys (titanium, manganese, Wolfram, tungsten &c.) are added in thestate .of'fsaltsf {chiefly in the state} of phosphides) to'. the -mixture either during the last melting or dnringa remclting ot' the ingot performed afterthe last casting and the taking of the samples. The alloy obtained in the way described above is fusible at a temperature below 800 centigrade. It lSSllll'lQlSDhltO heat it in kettles in the open furnaces or'crucibles being required.

The alloy molds itself perfectly in metal molds. j

I clain zinc seven hundred and fifty parts and lead in Austria July 31, 1896.1l'o.46 /3,442 in Italy 1 to give to the alloy an easier flow and greater, fluidity. This phosphorus can be used in I Ul e. is tal .andtaz'ialyzedg aurL-if. fou nd that.

The described alloy consisting of copper. one hundred and sixty parts; tin fifty parts;

air, exactly like lead ortin, and without either In witness whereof I have hereunto set )y 

